SPER1C1-AAJ ABB COMBIFLEX Trip Circuit Supervision Relay
Manufacturer: ABB
-
Part Number: SPER1C1-AAJ
Condition：New with Original Package
Product Type: Protection Relays
-
Country of Origin: Sweden
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
ABB SPER1C1-AAJ COMBIFLEX Trip Circuit Supervision Relay
The ABB SPER1C1-AAJ (part number 3BDH000338R1) is a trip circuit supervision relay engineered to continuously monitor critical control and signaling circuits in power distribution and protection systems. It detects open circuits, loss of control voltage, and connection faults in circuit-breaker trip paths and disconnector control circuits during both open and closed breaker states.
Circuit Supervision and Electrical Ratings
The module features a wide auxiliary operating voltage range spanning from 40 to 265 VDC. This broad operational window allows the relay to adapt to standard 48 VDC, 110 VDC, 125 VDC, and 220 VDC station battery supplies used in substation and industrial power distribution control schemes.
Internal sensing circuits detect faults within milliseconds, activating local alarms and signaling contacts to prevent undetected tripping failures during critical power system faults. Continuous low-level currents are injected through the monitored loop to maintain supervision without initiating breaker trip mechanisms.
Physical Architecture and Mounting
Designed within the ABB COMBIFLEX modular mounting architecture, the unit allows direct plug-in installation into standard relay mounting racks and protection panels.
The hardware features a compact enclosure measuring 22.5 x 75 x 110 mm and weighs 0.5 kg, facilitating efficient panel layout and field replacement during station routine maintenance.
| Parameter | Specification |
|---|---|
| Model | SPER1C1-AAJ |
| Brand | ABB |
| Part Number | 3BDH000338R1 |
| Product Series | COMBIFLEX |
| Product Type | Trip Circuit Supervision Relay |
| Monitoring Function | Continuous trip and control circuit supervision |
| Operating Voltage | 40–265 VDC |
| Dimensions (W x H x D) | 22.5 x 75 x 110 mm |
| Product Weight | 0.5 kg |
Frequently Asked Questions
Q: What primary function does the SPER1C1-AAJ supervision relay perform? A: It continuously monitors the integrity of trip paths and control circuits in circuit-breaker and disconnector control schemes to detect faults immediately.
Q: What auxiliary DC supply voltage range is compatible with this relay? A: The module operates across a wide voltage range from 40 VDC to 265 VDC.
Q: What mounting system is required to install the SPER1C1-AAJ? A: It is designed for integration into standard ABB COMBIFLEX modular relay rack and panel assemblies.